I'm sorry to hear that Noni. I know you must be really upset. Doing such things as your step G-mother did seems to be a trademark with the JW's. I found out that my Father died while doing an internet search, much in the same way you did, so I can imagine the ill feeling that you felt when his Obit came up. It is totally unfair. I wish you inner peace in knowing that there is nothing that you could have done to change things. The poster who mentioned the tree in honor of your G-father sounds like a really good idea!
I wish you the absolute best as you try to heal from this horrible thing that happened to you.